Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
Issued by NWS Austin/San Antonio, TX
593 FXUS64 KEWX 140011 AFDEWX Area Forecast Discussion National Weather Service Austin/San Antonio TX 611 PM CST Sat Dec 13 2025 ...New AVIATION... .KEY MESSAGES... - Temperature roller coaster continues through the next week. - Low to medium chance for rain from Saturday through Sunday morning. - Freeze likely early Monday morning && .SHORT TERM... (Tonight through Sunday night) Issued at 1151 AM CST Sat Dec 13 2025 For the rest of today expect temps to be tempered a bit because of the late dissipation of the fog this morning. Areas that had little to no fog should be a bit warmer. Expect highs in the 70s with a few locations possibly hitting 80. Lows for tonight should be much colder with many seeing the low to upper 40s north of I-35 with low 50s south as a strong cold front moves across our area from north to south. We could see rain chances increase again and have added pops as NBM was just to low, however not expecting anything heavy, rainfall wise. Rain chances should end over most areas except the Rio Grande Plains by early Sunday morning. CAA continues into Sunday with a major cooldown with many locations remaining in the 40s and low 50s north of the I-10 Corridor. Depending on how cool we stay we could likely be looking at freezing conditions Sunday night into Monday morning. While many locations expected to drop to freezing have been dropped from the freeze program there are still a few mainly in the far Coastal Plains that may need Freeze Warnings (Fayette, Lavaca, and Dewitt counties. Bottom line is this: if we stay cooler during the day Sunday, we will likely need Freeze warnings for these counties and possibly further inland including Bexar as well. However, if we stay warmer the freezing threat greatly diminishes. We will have to wait and see how Sunday plays out. For now am holding off on issuing any freeze warnings. && .LONG TERM... (Monday through next Saturday) Issued at 1151 AM CST Sat Dec 13 2025 For the long term we remain in a north to northeasterly low level flow until midday Monday when we start to see the return of southerly flow before an upper level disturbance approaches the area by Tuesday. Highs for Monday will be somewhat warmer than Sunday with many in the upper 50s to low 60s. During this timeframe expect temperatures to go on slow warming trend.. A combination of westerly/zonal flow aloft, south-southwesterly flow at the surface to 700mb, and a lack of recent rainfall, suggests temperatures during this period could be 15-20 degrees above normal. Meaning we should have no trouble warming into the 70s to lower 80s starting Wednesday and continuing through the forecast period. Additionally, this period also looks to continue to remain dry as most of the systems remain well to our north. && .AVIATION... (00Z TAFS) Issued at 552 PM CST Sat Dec 13 2025 All terminals will be VFR with light winds through the evening. A cold front will move through the region overnight. Winds will shift to the north around midnight. Despite the change, low ceilings will still develop near the MVFR/IFR mark. Wind speeds will increase late tonight and this will prevent any fog from forming. VFR conditions will return by late morning Sunday. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 77 45 50 33 / 20 20 0 0 Austin Bergstrom Intl Airport 77 45 51 31 / 20 20 0 0 New Braunfels Muni Airport 79 48 53 34 / 20 20 0 0 Burnet Muni Airport 77 39 46 31 / 0 30 0 0 Del Rio Intl Airport 75 53 57 46 / 0 10 30 0 Georgetown Muni Airport 77 42 48 30 / 10 20 0 0 Hondo Muni Airport 75 51 57 37 / 10 20 10 0 San Marcos Muni Airport 79 47 52 32 / 20 20 0 0 La Grange - Fayette Regional 77 50 54 31 / 30 20 0 0 San Antonio Intl Airport 76 50 54 37 / 10 20 10 0 Stinson Muni Airport 79 52 56 38 / 10 20 10 0 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...CJM LONG TERM....CJM AVIATION...05